package com.zzw.thread;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

public class DefaultThreadFactory implements ThreadFactory{

	private static final AtomicInteger poolNumber = new AtomicInteger(1);
	private final ThreadGroup group;
	private final AtomicInteger threadNumber = new AtomicInteger(1);
	private final String namePrefix;
	
	DefaultThreadFactory(){
		SecurityManager s = System.getSecurityManager();
		group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
		namePrefix = "pool-" + poolNumber.getAndIncrement() + "-thread-";
	}
	
	@Override
	public Thread newThread(Runnable r) {
		Thread t = new Thread(group,r,namePrefix + threadNumber.getAndIncrement(),0);
		if(t.isDaemon()){
			t.setDaemon(false);
		}
		if(t.getPriority() != Thread.NORM_PRIORITY){
			t.setPriority(Thread.NORM_PRIORITY);
		}
		return t;
	}

	public static void main(String[] args) {
		ThreadPoolExcutorTest excutorTest = new ThreadPoolExcutorTest();
	}
}
